Sidelink Positioning Assistance Data Request for UE Resource Allocation
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G networks, face challenges in efficiently managing sidelink positioning peer discovery and resource allocation for user equipment (UE) in vehicular environments, leading to suboptimal positioning accuracy and resource utilization.
Innovation Solution
A method where user equipment (UE) identifies potential positioning peers and sends a request to a network node for assistance data, which includes information about these peers, enabling the network node to provide sidelink positioning assistance data and manage resource allocation efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If UE autonomously discovers positioning peers and requests assistance data, then positioning accuracy is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The network node pre-configures UEs with assistance data including potential positioning peer information before positioning operations. This preliminary provision of data reduces the need for complex autonomous discovery processes at the UE side, thereby improving positioning accuracy while limiting the increase in device complexity.
Solution Approach 2:
The network node acts as an intermediary that manages and distributes assistance data to UEs. This intermediary approach centralizes the complexity of positioning peer management at the network side rather than requiring complex autonomous operations at each UE, thus improving positioning accuracy without proportionally increasing device complexity.
2Measurement precision
If comprehensive assistance data is provided for all potential positioning peers, then positioning accuracy is improved, but signaling overhead and network resource consumption increase
Solution Approach 1:
The network node provides assistance data in a targeted manner, delivering specific information about potential positioning peers that is locally relevant to each UE's positioning needs. This selective provision of assistance data improves positioning accuracy while avoiding the signaling overhead associated with broadcasting comprehensive data to all UEs.
Solution Approach 2:
The network node pre-configures UEs with assistance data including potential positioning peer information before positioning operations. This preliminary provision of data reduces the need for complex autonomous discovery processes at the UE side, thereby improving positioning accuracy while limiting the increase in device complexity.
3Productivity
If dynamic resource allocation for sidelink positioning is implemented, then resource utilization is improved, but system complexity and control overhead increase
Solution Approach 1:
The system implements dynamic resource allocation for sidelink positioning where resource configurations can be adjusted based on current positioning needs and network conditions. This dynamic approach improves resource utilization by allocating resources only when and where needed, while the network node manages the complexity of coordination to limit system-level complexity increases.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) may identify at least one potential positioning peer UE. The UE may send, to a network node, a request for assistance data, the request comprising information associated with the at least one potential positioning peer UE. In another aspect, a network node may receive, from a UE, a request for assistance data, the request comprising information associated with at least one potential positioning peer UE. The network node may send, to the UE, assistance data based at least in part on the information associated with the at least one potential positioning peer UE, the assistance data comprising assistance data for sidelink positioning.